Are you supposed to feel this way after an enema??

I did my first REAL enema last night, previous to this all I had ever done was a little fleet enema for constipation. It was just a plain warm water enema, and the first round I did 2 quarts. I only managed to hold it in for roughly 4-5 minutes, then sat on the toilet for about 40 minutes. Second time around I only managed to get about 1 quart in before I had that "I can't wait ANY longer" urge. After sitting on the toilet for what seemed like about 30 minutes I thought I was done. I got up, took a shower and went to bed. I felt bloaty still and kinda crampy, but just thought that was normal. Anyway, I woke up today feeling TOTALLY wiped out. I feel so weak I can't hardly do anything. I have extreme gas (with a very rancid odor) and cramping BAD. My stools are still very watery too. It has been over 12 hours since I did the enema, is this normal? If it IS normal, does it get easier with time??